Guest Stars Kathleen Choe as Subject 3 Danny Hoch as Subject 5 Stephen Hill as Subject 7 Allyce Beasley as Subject 11 Billy Magnussen as Jed Milgrim Rome Kanda as Dr. Robert Muramoto Hank Azaria voices Hank Landsberg Grace Van Patten as Olivia Meadows Josh Pais as Butler David Fierro as Bobby Ariel Kavoussi as Female Neverdie Co Starring Sejal Shah as Medical Tech Dai Ishiguro as Head Control Tech Alexandra Curran as Holly Milgrim Nate Craig as Phil Milgrim Cailin Loesch as McMurphy Twin Hannah Loesch as McMurphy Twin Jacqueline Grabois as Jackie Glenn Wein as Male Neverdie Lindsey Blanchard as Little Ellie Lily Grace Riddle as Little Annie